Can silicon oxides replace carbonaceous anodes in Li-ion batteries?

The emergence of developing new anode materials for Li-ion batteries has motivated experts to screen several materials to replace conventional carbonaceous anodes. Silicon oxides with different silicon and oxygen contents are a promising family of anode materials without the severe volume change of silicon-based anodes.

What is a lithium-ion oxygen battery?

Zhou’s research team has effectively created a high-performing lithium-ion oxygen (Li–O 2) battery by utilizing commercially available silicon (Si) particles as the anode . A robust solid–electrolyte interface (SEI) coating was formed on the surface of the silicon (Si) anode.

Can silicon be used as a battery anode material?

1. Introduction Silicon with low voltage profile and high theoretical capacity (3590 mA h g −1 for Li 15 Si 4 phase at room temperature) has been evaluated as the next generation Li-ion battery anode material in the past two decades. However, until now it cannot be employed in the practical batteries as the main active material.

Is silicon nitride an anode material for Li-ion batteries?

Ulvestad, A., Mæhlen, J. P. & Kirkengen, M. Silicon nitride as anode material for Li-ion batteries: understanding the SiN x conversion reaction. J. Power Sources 399, 414–421 (2018). Ulvestad, A. et al. Substoichiometric silicon nitride—an anode material for Li-ion batteries promising high stability and high capacity. Sci. Rep. 8, 8634 (2018).

Why is lithium oxygen battery a good battery?

Furthermore, as the battery is being discharged, the lithium anode exhibits a remarkably high specific capacity and a comparatively low electrochemical potential (versus the standard hydrogen electrode (SHE) at −3.04 V), ensuring ideal discharge capacity and high operating voltage . 2.1. Basic Principles of Lithium–Oxygen Batteries

Is Sio X a lithium ion battery anode?

Non-stoichiometric silicon oxides (or silicon sub-oxides) with a general formula of SiO x are also explored as Li-ion battery anodes. The oxygen content can be varied, but all compositions are reactive to lithium. There is a trade-off between the silicon and oxygen content in SiO x -based anodes.